package com.example.demoshiyan1;

import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Arrays;
import java.util.Map;

@SpringBootApplication
public class DemoShiyan1Application {

    public static void main(String[] args) {
        SpringApplication.run(DemoShiyan1Application.class, args);
    }

    @RestController
    public class HelloController{

        @RequestMapping("/")
//        @PostMapping("/post")
        public String index(){
            return "Hello,Springboot!";
        }

        @PostMapping ("/Map")
        Map<String,Object> index2(@RequestBody Map<String,Object>rq) {
            return rq;
        }
    }

    @Bean
    public CommandLineRunner commandLineRunner (ApplicationContext ctx) {
        return args -> {
            System.out.println("由Spring Boot注册的所有Bean: ");
            String[] beanNames = ctx.getBeanDefinitionNames();
            Arrays. sort(beanNames);
            for (String beanName : beanNames) {
                System.out.println(beanName);
            }
        };
    }

}
